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<title>mod_charset_lite － Apache 2.2 中文手册 [金步国]</title>
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<div id="page-content"><div id="preamble"><h1>Apache模块 mod_charset_lite</h1>

<table border="1" cellpadding="0" cellspacing="0" bordercolor="#AAAAAA" class="module">
<tr><th><a href="module-dict.html#Description">说明</a></th><td>允许对页面进行字符集转换</td></tr>
<tr><th><a href="module-dict.html#Status">状态</a></th><td>实验(X)</td></tr>
<tr><th><a href="module-dict.html#ModuleIdentifier">模块名</a></th><td>charset_lite_module</td></tr>
<tr><th><a href="module-dict.html#SourceFile">源文件</a></th><td>mod_charset_lite.c</td></tr>
</table>
<h3>概述</h3>

    <p>This is an <strong>experimental</strong> module and should
    be used with care. Experiment with your
    <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code> configuration to ensure that it
    performs the desired function.</p>

    <p><code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code> allows the administrator to
    specify the source character set of objects as well as the
    character set they should be translated into before sending to the
    client. <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code> does not translate the
    data itself but instead tells Apache what translation to
    perform. <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code> is applicable to EBCDIC
    and ASCII host environments. In an EBCDIC environment, Apache
    normally translates text content from the code page of the Apache
    process locale to ISO-8859-1. <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code>
    can be used to specify that a different translation is to be
    performed. In an ASCII environment, Apache normally performs no
    translation, so <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code> is needed in
    order for any translation to take place.</p>

    <p>This module provides a small subset of configuration
    mechanisms implemented by Russian Apache and its associated
    <code>mod_charset</code>.</p>
</div>
<div class="top"><a href="mod_charset_lite.html#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="section">
<h2><a name="problems" id="problems">Common Problems</a></h2>

    <h3>Invalid character set names</h3>

      <p>The character set name parameters of <code class="directive"><a href="mod_charset_lite.html#charsetsourceenc">CharsetSourceEnc</a></code>和<code class="directive"><a href="mod_charset_lite.html#charsetdefault">CharsetDefault</a></code>
      must be acceptable to the translation mechanism used by
      <a class="glossarylink" href="../glossary.html#apr" title="see glossary">APR</a> on the system where
      <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code> is deployed.  These character
      set names are not standardized and are usually not the same as
      the corresponding values used in http headers.  Currently, APR
      can only use iconv(3), so you can easily test your character set
      names using the iconv(1) program, as follows:</p>

      <div class="example"><p><code>
        iconv -f charsetsourceenc-value -t charsetdefault-value
      </code></p></div>


    <h3>Mismatch between character set of content and translation
    rules</h3>

      <p>If the translation rules don't make sense for the content,
      translation can fail in various ways, including:</p>

      <ul>
      <li>The translation mechanism may return a bad return code,
      and the connection will be aborted.</li>

      <li>The translation mechanism may silently place special
      characters (e.g., question marks) in the output buffer when
      it cannot translate the input buffer.</li>
      </ul>

</div>
<div class="top"><a href="mod_charset_lite.html#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="CharsetDefault" id="CharsetDefault">CharsetDefault</a> <a name="charsetdefault" id="charsetdefault">指令</a></h2>
<table border="1" cellpadding="0" cellspacing="0" bordercolor="#AAAAAA" class="directive">
<tr><th><a href="directive-dict.html#Description">说明</a></th><td>Charset to translate into</td></tr>
<tr><th><a href="directive-dict.html#Syntax">语法</a></th><td><code>CharsetDefault <var>charset</var></code></td></tr>
<tr><th><a href="directive-dict.html#Context">作用域</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">覆盖项</a></th><td>FileInfo</td></tr>
<tr><th><a href="directive-dict.html#Status">状态</a></th><td>实验(X)</td></tr>
<tr><th><a href="directive-dict.html#Module">模块</a></th><td>mod_charset_lite</td></tr>
</table>
    <p><code class="directive">CharsetDefault</code> directive specifies the
    charset that content in the associated container should be
    translated to.</p>

    <p>The value of the <var>charset</var> argument must be accepted
    as a valid character set name by the character set support in
    <a class="glossarylink" href="../glossary.html#apr" title="see glossary">APR</a>. Generally, this means that it must be
    supported by iconv.</p>

    <div class="example"><h3>示例</h3><p><code>
      &lt;Directory /export/home/trawick/apacheinst/htdocs/convert&gt;<br />
      <span class="indent">
        CharsetSourceEnc  UTF-16BE<br />
        CharsetDefault    ISO-8859-1<br />
      </span>
      &lt;/Directory&gt;
    </code></p></div>

</div>
<div class="top"><a href="mod_charset_lite.html#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="CharsetOptions" id="CharsetOptions">CharsetOptions</a> <a name="charsetoptions" id="charsetoptions">指令</a></h2>
<table border="1" cellpadding="0" cellspacing="0" bordercolor="#AAAAAA" class="directive">
<tr><th><a href="directive-dict.html#Description">说明</a></th><td>Configures charset translation behavior</td></tr>
<tr><th><a href="directive-dict.html#Syntax">语法</a></th><td><code>CharsetOptions <var>option</var> [<var>option</var>] ...</code></td></tr>
<tr><th><a href="directive-dict.html#Default">默认值</a></th><td><code>CharsetOptions DebugLevel=0 NoImplicitAdd</code></td></tr>
<tr><th><a href="directive-dict.html#Context">作用域</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">覆盖项</a></th><td>FileInfo</td></tr>
<tr><th><a href="directive-dict.html#Status">状态</a></th><td>实验(X)</td></tr>
<tr><th><a href="directive-dict.html#Module">模块</a></th><td>mod_charset_lite</td></tr>
</table>
    <p><code class="directive">CharsetOptions</code> directive configures certain
    behaviors of <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code>. <var>Option</var> can
    be one of</p>

    <dl>
      <dt><code>DebugLevel=<var>n</var></code></dt>

      <dd>The <code>DebugLevel</code> keyword allows you to specify
      the level of debug messages generated by
      <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code>. By default, no messages are
      generated. This is equivalent to <code>DebugLevel=0</code>.
      With higher numbers, more debug messages are generated, and
      server performance will be degraded. The actual meanings of
      the numeric values are described with the definitions of the
      DBGLVL_ constants near the beginning of
      <code>mod_charset_lite.c</code>.</dd>

      <dt><code>ImplicitAdd | NoImplicitAdd</code></dt>

      <dd>The <code>ImplicitAdd</code> keyword specifies that
      <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code> should implicitly insert its
      filter when the configuration specifies that the character
      set of content should be translated. If the filter chain is
      explicitly configured using the <code class="directive"><a href="mod_mime.html#addoutputfilter">AddOutputFilter</a></code> directive, <code>NoImplicitAdd</code>
      should be specified so that <code class="module"><a href="mod_charset_lite.html">mod_charset_lite</a></code>
      doesn't add its filter.</dd>
    </dl>

</div>
<div class="top"><a href="mod_charset_lite.html#page-header"><img alt="top" src="../images/up.gif" /></a></div>
<div class="directive-section"><h2><a name="CharsetSourceEnc" id="CharsetSourceEnc">CharsetSourceEnc</a> <a name="charsetsourceenc" id="charsetsourceenc">指令</a></h2>
<table border="1" cellpadding="0" cellspacing="0" bordercolor="#AAAAAA" class="directive">
<tr><th><a href="directive-dict.html#Description">说明</a></th><td>Source charset of files</td></tr>
<tr><th><a href="directive-dict.html#Syntax">语法</a></th><td><code>CharsetSourceEnc <var>charset</var></code></td></tr>
<tr><th><a href="directive-dict.html#Context">作用域</a></th><td>server config, virtual host, directory, .htaccess</td></tr>
<tr><th><a href="directive-dict.html#Override">覆盖项</a></th><td>FileInfo</td></tr>
<tr><th><a href="directive-dict.html#Status">状态</a></th><td>实验(X)</td></tr>
<tr><th><a href="directive-dict.html#Module">模块</a></th><td>mod_charset_lite</td></tr>
</table>
    <p><code class="directive">CharsetSourceEnc</code> directive specifies the
    source charset of files in the associated container.</p>

    <p>The value of the <var>charset</var> argument must be accepted
    as a valid character set name by the character set support in
    <a class="glossarylink" href="../glossary.html#apr" title="see glossary">APR</a>. Generally, this means that it must be
    supported by iconv.</p>

    <div class="example"><h3>示例</h3><p><code>
      &lt;Directory /export/home/trawick/apacheinst/htdocs/convert&gt;<br />
      <span class="indent">
        CharsetSourceEnc  UTF-16BE<br />
        CharsetDefault    ISO-8859-1<br />
      </span>
      &lt;/Directory&gt;
    </code></p></div>

    <p>The character set names in this example work with the iconv
    translation support in Solaris 8.</p>

</div>
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